The Hanover Insurance Group, Inc.
US ˙ NYSE ˙ US4108671052

SecurityTHG / The Hanover Insurance Group, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership44,525 shares
Latest Disclosed Value $ 7,718
Natixis Advisors, L.p. reports 51.92% decrease in ownership of THG / The Hanover Insurance Group, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 44,525 shares of The Hanover Insurance Group, Inc. (US:THG) valued at $7,718,409 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 92,612 shares of The Hanover Insurance Group, Inc.. This represents a change in shares of -51.92% during the quarter. The current value of the position is $8,297,234 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F HANOVER INSURANCE GROUP COM 410867105 44,525 -48,087 -51.92 8 -56.25 0.0107
2026-02-10 2025-12-31 13F HANOVER INSURANCE GROUP COM 410867105 92,612 -4,452 -4.59 17 -5.88 0.0240
2025-11-13 2025-09-30 13F HANOVER INSURANCE GROUP COM 410867105 97,064 2,794 2.96 18 6.25 0.0257
2025-08-13 2025-06-30 13F HANOVER INSURANCE GROUP COM 410867105 94,270 15,696 19.98 16 23.08 0.0254
2025-05-08 2025-03-31 13F HANOVER INSURANCE GROUP COM 410867105 78,574 67,506 609.92 14 1,200.00 0.0253
2025-02-10 2024-12-31 13F HANOVER INS GROUP COM 410867105 11,068 -857 -7.19 2 0.00 0.0032
2024-11-06 2024-09-30 13F HANOVER INS GROUP COM 410867105 11,925 1,408 13.39 2 0.00 0.0034
2024-08-01 2024-06-30 13F HANOVER INS GROUP COM 410867105 10,517 -647 -5.80 1 0.00 0.0029
2024-04-25 2024-03-31 13F HANOVER INS GROUP COM 410867105 11,164 11,164 2 0.0035
2024-02-06 2023-12-31 13F HANOVER INS GROUP COM 410867105 0 -18,174 -100.00 0 -100.00
2023-11-13 2023-09-30 13F HANOVER INS GROUP COM 410867105 18,174 2,479 15.79 2 100.00 0.0062
2023-08-15 2023-06-30 13F HANOVER INS GROUP COM 410867105 15,695 -1,200 -7.10 2 -50.00 0.0055
2023-05-11 2023-03-31 13F HANOVER INS GROUP COM 410867105 16,895 -31 -0.18 2 0.00 0.0075
2023-01-27 2022-12-31 13F HANOVER INS GROUP COM 410867105 16,926 717 4.42 2 -99.90 0.0086
2022-11-14 2022-09-30 13F HANOVER INSURANCE GROUP COM 410867105 16,209 1,401 9.46 2,077 -4.11 0.0088
2022-08-12 2022-06-30 13F HANOVER INS GROUP COM 410867105 14,808 1,385 10.32 2,166 7.92 0.0095
2022-05-12 2022-03-31 13F HANOVER INS GROUP COM 410867105 13,423 355 2.72 2,007 17.16 0.0077
2022-02-08 2021-12-31 13F HANOVER INS GROUP COM 410867105 13,068 786 6.40 1,713 7.60 0.0065
2021-11-15 2021-09-30 13F HANOVER INS GROUP COM 410867105 12,282 1,275 11.58 1,592 6.63 0.0065
2021-08-12 2021-06-30 13F HANOVER INS GROUP COM 410867105 11,007 -1,002 -8.34 1,493 -3.93 0.0070
2021-05-05 2021-03-31 13F HANOVER INS GROUP COM 410867105 12,009 1,670 16.15 1,554 28.54 0.0081
2021-02-12 2020-12-31 13F HANOVER INS GROUP COM 410867105 10,339 10,339 1,209 0.0070
2020-11-12 2020-09-30 13F HANOVER INSURANCE GROUP COM 410867105 0 -49,067 -100.00 0 -100.00
2020-08-11 2020-06-30 13F HANOVER INSURANCE GROUP COM 410867105 49,067 -27,839 -36.20 4,972 -28.62 0.0330
2020-04-27 2020-03-31 13F HANOVER INSURANCE GROUP COM 410867105 76,906 12,777 19.92 6,966 -20.52 0.0568
2020-02-10 2019-12-31 13F HANOVER INSURANCE GROUP COM 410867105 64,129 32,942 105.63 8,765 107.36 0.0618
2019-11-12 2019-09-30 13F HANOVER INS GROUP COM 410867105 31,187 7,474 31.52 4,227 38.95 0.0336
2019-08-12 2019-06-30 13F HANOVER INS GROUP COM 410867105 23,713 2,060 9.51 3,042 23.06 0.0248
2019-05-15 2019-03-31 13F/A-1 HANOVER INS GROUP COM 410867105 21,653 1,681 8.42 2,472 6.00 0.0216
2019-05-15 2019-03-31 13F HANOVER INS GROUP COM 410867105 21,653 1,681 2,472
2019-02-13 2018-12-31 13F/A-1 HANOVER INS GROUP COM 410867105 19,972 19,972 2,332 0.0230
2019-02-13 2018-12-31 13F HANOVER INS GROUP COM 410867105 19,972 2,332 0.0230
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.